package com.example.mycloudpicture.controller;


import cn.hutool.core.bean.BeanUtil;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.mycloudpicture.annotation.AuthCheck;
import com.example.mycloudpicture.common.BaseResponse;
import com.example.mycloudpicture.common.DeleteRequest;
import com.example.mycloudpicture.common.ResultUtils;
import com.example.mycloudpicture.constant.UserConstant;
import com.example.mycloudpicture.exception.BusinessException;
import com.example.mycloudpicture.exception.ErrorCode;
import com.example.mycloudpicture.exception.ThrowUtils;
import com.example.mycloudpicture.model.dto.picture.PictureEditRequest;
import com.example.mycloudpicture.model.dto.picture.PictureQueryRequest;
import com.example.mycloudpicture.model.dto.picture.PictureUpdateRequest;
import com.example.mycloudpicture.model.dto.space.*;
import com.example.mycloudpicture.model.entity.Picture;
import com.example.mycloudpicture.model.entity.Space;
import com.example.mycloudpicture.model.entity.User;
import com.example.mycloudpicture.model.enums.PictureReviewStatusEnum;
import com.example.mycloudpicture.model.enums.SpaceLevelEnum;
import com.example.mycloudpicture.model.vo.PictureVo;
import com.example.mycloudpicture.model.vo.SpaceVo;
import com.example.mycloudpicture.service.SpaceService;
import com.example.mycloudpicture.service.UserService;
import lombok.extern.slf4j.Slf4j;
import org.checkerframework.checker.units.qual.A;
import org.springframework.beans.BeanUtils;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;

/**
 * @author 黄宽亮
 * @version 1.0
 * @description: TODO
 * @date 2025/4/7 20:54
 */
@RestController
@RequestMapping("/space")
@Slf4j
public class SpaceController {

    @Resource
    UserService userService;
    @Resource
    SpaceService spaceService;

    /**
     * 添加空间
     * @param spaceAddRequest
     * @param request
     * @return
     */
    @PostMapping("/add")
    @AuthCheck
    public BaseResponse<Long> addSpace(@RequestBody SpaceAddRequest spaceAddRequest, HttpServletRequest request) {
        ThrowUtils.throwIf(spaceAddRequest == null, ErrorCode.PARAMS_ERROR);
        User loginUser = userService.getLoginUser(request);
        Long newId= spaceService.addSpace(spaceAddRequest, loginUser);
        return ResultUtils.success(newId);

    }
    /**
     * 删除空间
     * @param deleteRequest
     * @param request
     * @return
     */
    @PostMapping("/delete")
    @AuthCheck
    public BaseResponse<Boolean> deleteSpace(@RequestBody DeleteRequest deleteRequest, HttpServletRequest request) {
        if (deleteRequest == null || deleteRequest.getId() <= 0) {
            throw new BusinessException(ErrorCode.PARAMS_ERROR);
        }
        User loginUser = userService.getLoginUser(request);
        long id = deleteRequest.getId();
        //判断是否存在
        Space oldSpace=spaceService.getById(id);
        ThrowUtils.throwIf(oldSpace == null, ErrorCode.NOT_FOUND_ERROR);
        // 仅本人或者管理员可删除
        spaceService.checkSpaceAuth(loginUser, oldSpace);
        boolean result = spaceService.removeById(id);
        ThrowUtils.throwIf(!result, ErrorCode.OPERATION_ERROR);
        return ResultUtils.success(true);
    }

    /**
     * 更新空间（仅管理员可用）
     */
    @PostMapping("/update")
    @AuthCheck(mustRole = UserConstant.ADMIN_ROLE)
    public BaseResponse<Boolean> updateSpace(@RequestBody SpaceUpdateRequest spaceUpdateRequest, HttpServletRequest request) {
        if (spaceUpdateRequest == null || spaceUpdateRequest.getId() <= 0) {
            throw new BusinessException(ErrorCode.PARAMS_ERROR);
        }
        Space space=new Space();
        BeanUtil.copyProperties(spaceUpdateRequest, space);
        //自动填充数据
        spaceService.fillSpaceBySpaceLevel(space);
        //数据校验
        spaceService.validSpace(space,false);
        long id = spaceUpdateRequest.getId();
        Space oldSpace = spaceService.getById(id);
        ThrowUtils.throwIf(oldSpace == null, ErrorCode.NOT_FOUND_ERROR);
        //补充审核参数
        User loginUser = userService.getLoginUser(request);
        //操作数据库
        boolean result = spaceService.updateById(space);
        ThrowUtils.throwIf(!result, ErrorCode.OPERATION_ERROR);
        return ResultUtils.success(true);
    }

    /**
     * 根据 id 获取空间（仅管理员可用）
     */
    @GetMapping("/get")
    @AuthCheck
    public BaseResponse<Space> getSpace(Long id, HttpServletRequest request) {
        ThrowUtils.throwIf(id <= 0, ErrorCode.PARAMS_ERROR);
        Space space = spaceService.getById(id);
        ThrowUtils.throwIf(space == null, ErrorCode.NOT_FOUND_ERROR);
        return ResultUtils.success(space);
    }

    /**
     * 根据 id 获取空间（封装类）
     */
    @GetMapping("/get/vo")
    @AuthCheck
    public BaseResponse<SpaceVo> getSpaceVOById(long id, HttpServletRequest request) {
        ThrowUtils.throwIf(id <= 0, ErrorCode.PARAMS_ERROR);
        // 查询数据库
        Space space = spaceService.getById(id);
        ThrowUtils.throwIf(space == null, ErrorCode.NOT_FOUND_ERROR);
        // 获取封装类
        return ResultUtils.success(spaceService.getSpaceVO(space, request));
    }


    /**
     * 分页获取图片列表（仅管理员可用）
     */
    @PostMapping("/list/page")
    @AuthCheck(mustRole = UserConstant.ADMIN_ROLE)
    public BaseResponse<Page<Space>> listSpaceByPage(@RequestBody SpaceQueryRequest spaceQueryRequest) {
        long current = spaceQueryRequest.getCurrent();
        long size = spaceQueryRequest.getPageSize();
        // 查询数据库
        Page<Space> spacePage = spaceService.page(new Page<>(current, size),
                spaceService.getQueryWrapper(spaceQueryRequest));
        return ResultUtils.success(spacePage);
    }


    /**
     * 分页获取图片列表（封装类）
     */
    @PostMapping("/list/page/vo")
    @AuthCheck
    public BaseResponse<Page<SpaceVo>> listSpaceVoByPage(@RequestBody SpaceQueryRequest spaceQueryRequest,
                                                             HttpServletRequest request) {
        long current = spaceQueryRequest.getCurrent();
        long size = spaceQueryRequest.getPageSize();
        // 限制爬虫
        ThrowUtils.throwIf(size > 20, ErrorCode.PARAMS_ERROR);
        // 查询数据库
        Page<Space> spacePage = spaceService.page(new Page<>(current, size),
                spaceService.getQueryWrapper(spaceQueryRequest));
        // 获取封装类
        return ResultUtils.success(spaceService.getSpaceVOPage(spacePage, request));
    }

    /**
     * 编辑图片（给用户使用）
     */
    @PostMapping("/edit")
    @AuthCheck
    public BaseResponse<Boolean> editSpace(@RequestBody SpaceEditRequest spaceEditRequest, HttpServletRequest request) {
        if (spaceEditRequest == null || spaceEditRequest.getId() <= 0) {
            throw new BusinessException(ErrorCode.PARAMS_ERROR);
        }
        // 在此处将实体类和 DTO 进行转换
        Space space = new Space();
        BeanUtils.copyProperties(spaceEditRequest, space);
        //自动填充数据
        spaceService.fillSpaceBySpaceLevel(space);
        //设置编辑时间
        space.setEditTime(new Date());
        // 数据校验
        spaceService.validSpace(space, false);
        User loginUser = userService.getLoginUser(request);
        //判断是否存在
        long id = spaceEditRequest.getId();
        Space oldSpace = spaceService.getById(id);

        ThrowUtils.throwIf(oldSpace == null, ErrorCode.NOT_FOUND_ERROR);
        // 仅本人或管理员可编辑
        spaceService.checkSpaceAuth(loginUser, oldSpace);
        // 操作数据库
        boolean result = spaceService.updateById(space);
        ThrowUtils.throwIf(!result, ErrorCode.OPERATION_ERROR);
        return ResultUtils.success(true);
    }

    /**
     * 获取空间级别列表
     * @return
     */
    @GetMapping("/list/level")
    public BaseResponse<List<SpaceLevel>> listSpaceLevel() {
        List<SpaceLevel> spaceLevels = Arrays.stream(SpaceLevelEnum.values()).
                map(spaceLevelEnum -> new SpaceLevel(spaceLevelEnum.getValue(), spaceLevelEnum.getText(),spaceLevelEnum.getMaxCount(),spaceLevelEnum.getMaxSize())
        ).collect(Collectors.toList());
        return ResultUtils.success(spaceLevels);
    }
}
